Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    19/10/2024, 09:03

General

  • Target

    12.exe

  • Size

    469KB

  • MD5

    61729e492823f29b36beaff277e18231

  • SHA1

    eeeeeaa271fe8a3b79fc3f9f51c753339526481a

  • SHA256

    00d40219c25ddb2121292d25de682239862b693e78d09a3c542f622b3aaca8e9

  • SHA512

    7809e99417fc114698d75b3bd368d19ed01df2d18db1fc367d86d7e6b1bc9a15eca7afe4fb8a0f3952465f294684f37dd50691cebb996fc1cd532bd129c69d3e

  • SSDEEP

    12288:Wmnk7iLJbpIpiRL6I2WhSKQ9ZsfZQSCn9:uiLJbpI7I2WhQqZ7C9

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

core-hook.gl.at.ply.gg:7242

Attributes
  • audio_folder

    MicRecords

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    scvhost.exe

  • copy_folder

    files

  • delete_file

    true

  • hide_file

    true

  • hide_keylog_file

    false

  • install_flag

    true

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • mouse_option

    false

  • mutex

    Rmc-76OHLW

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • startup_value

    scvhost

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Signatures

  • Remcos

    Remcos is a closed-source remote control and surveillance software.

  • UAC bypass 3 TTPs 3 IoCs
  • Detected Nirsoft tools 3 IoCs

    Free utilities often used by attackers which can steal passwords, product keys, etc.

  • NirSoft MailPassView 1 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 1 IoCs

    Password recovery tool for various web browsers

  • Adds policy Run key to start application 2 TTPs 6 IoCs
  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
  • Adds Run key to start application 2 TTPs 6 IoCs
  • Suspicious use of SetThreadContext 5 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 14 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Modifies registry key 1 TTPs 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious behavior: MapViewOfSection 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\12.exe
    "C:\Users\Admin\AppData\Local\Temp\12.exe"
    1⤵
    • Adds policy Run key to start application
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1056
    • C:\Windows\SysWOW64\cmd.exe
      /k %windir%\System32\reg.exe ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /t REG_DWORD /d 0 /f
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1256
      • C:\Windows\SysWOW64\reg.exe
        C:\Windows\System32\reg.exe ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /t REG_DWORD /d 0 /f
        3⤵
        • UAC bypass
        • System Location Discovery: System Language Discovery
        • Modifies registry key
        PID:2132
    • C:\Windows\SysWOW64\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\install.vbs"
      2⤵
      • Deletes itself
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2280
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /c "C:\ProgramData\files\scvhost.exe"
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2248
        • C:\ProgramData\files\scvhost.exe
          C:\ProgramData\files\scvhost.exe
          4⤵
          • Adds policy Run key to start application
          • Executes dropped EXE
          • Adds Run key to start application
          • Suspicious use of SetThreadContext
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious behavior: MapViewOfSection
          • Suspicious use of WriteProcessMemory
          PID:2812
          • C:\Windows\SysWOW64\cmd.exe
            /k %windir%\System32\reg.exe ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /t REG_DWORD /d 0 /f
            5⤵
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:2552
            • C:\Windows\SysWOW64\reg.exe
              C:\Windows\System32\reg.exe ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /t REG_DWORD /d 0 /f
              6⤵
              • UAC bypass
              • System Location Discovery: System Language Discovery
              • Modifies registry key
              PID:2704
          • \??\c:\program files (x86)\internet explorer\iexplore.exe
            "c:\program files (x86)\internet explorer\iexplore.exe"
            5⤵
            • Adds policy Run key to start application
            • Adds Run key to start application
            • Suspicious use of SetThreadContext
            • System Location Discovery: System Language Discovery
            • Suspicious behavior: MapViewOfSection
            • Suspicious use of WriteProcessMemory
            PID:2352
            • C:\Windows\SysWOW64\cmd.exe
              /k %windir%\System32\reg.exe ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /t REG_DWORD /d 0 /f
              6⤵
              • System Location Discovery: System Language Discovery
              • Suspicious use of WriteProcessMemory
              PID:2680
              • C:\Windows\SysWOW64\reg.exe
                C:\Windows\System32\reg.exe ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /t REG_DWORD /d 0 /f
                7⤵
                • UAC bypass
                • System Location Discovery: System Language Discovery
                • Modifies registry key
                PID:2592
            • C:\Windows\SysWOW64\svchost.exe
              svchost.exe
              6⤵
                PID:2232
              • \??\c:\program files (x86)\internet explorer\iexplore.exe
                "c:\program files (x86)\internet explorer\iexplore.exe" /stext "C:\Users\Admin\AppData\Local\Temp\otsdmgywjc"
                6⤵
                • System Location Discovery: System Language Discovery
                • Suspicious behavior: EnumeratesProcesses
                PID:2712
              • \??\c:\program files (x86)\internet explorer\iexplore.exe
                "c:\program files (x86)\internet explorer\iexplore.exe" /stext "C:\Users\Admin\AppData\Local\Temp\znyvnriqwkyma"
                6⤵
                  PID:2456
                • \??\c:\program files (x86)\internet explorer\iexplore.exe
                  "c:\program files (x86)\internet explorer\iexplore.exe" /stext "C:\Users\Admin\AppData\Local\Temp\znyvnriqwkyma"
                  6⤵
                  • Accesses Microsoft Outlook accounts
                  • System Location Discovery: System Language Discovery
                  PID:2452
                • \??\c:\program files (x86)\internet explorer\iexplore.exe
                  "c:\program files (x86)\internet explorer\iexplore.exe" /stext "C:\Users\Admin\AppData\Local\Temp\bqlogjtsksqzdvya"
                  6⤵
                  • System Location Discovery: System Language Discovery
                  • Suspicious use of AdjustPrivilegeToken
                  PID:2508

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\Users\Admin\AppData\Local\Temp\install.vbs

        Filesize

        502B

        MD5

        b6c70211b837d7d6cdc8eb917b8c2f87

        SHA1

        5f687f3533b078ade364d7483088df6b9cd24f26

        SHA256

        f5951224b0822114699ec51e3e5eb16d3e7184a3cbc55566a963ce85d5ec2000

        SHA512

        bfdcd4bf7ea48004b2adb17e9db4a3b3ff8f1e50bd779fbf357efff416eda3c85c77394eeda318ed9395a4e0116f3aa3329af2522257b769241c74778fa34e56

      • C:\Users\Admin\AppData\Local\Temp\otsdmgywjc

        Filesize

        2B

        MD5

        f3b25701fe362ec84616a93a45ce9998

        SHA1

        d62636d8caec13f04e28442a0a6fa1afeb024bbb

        SHA256

        b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

        SHA512

        98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

      • \ProgramData\files\scvhost.exe

        Filesize

        469KB

        MD5

        61729e492823f29b36beaff277e18231

        SHA1

        eeeeeaa271fe8a3b79fc3f9f51c753339526481a

        SHA256

        00d40219c25ddb2121292d25de682239862b693e78d09a3c542f622b3aaca8e9

        SHA512

        7809e99417fc114698d75b3bd368d19ed01df2d18db1fc367d86d7e6b1bc9a15eca7afe4fb8a0f3952465f294684f37dd50691cebb996fc1cd532bd129c69d3e

      • memory/2232-17-0x00000000000D0000-0x000000000014F000-memory.dmp

        Filesize

        508KB

      • memory/2232-16-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

        Filesize

        4KB

      • memory/2232-18-0x00000000000D0000-0x000000000014F000-memory.dmp

        Filesize

        508KB

      • memory/2352-25-0x0000000000130000-0x00000000001AF000-memory.dmp

        Filesize

        508KB

      • memory/2352-46-0x0000000000130000-0x00000000001AF000-memory.dmp

        Filesize

        508KB

      • memory/2352-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

        Filesize

        4KB

      • memory/2352-19-0x0000000000130000-0x00000000001AF000-memory.dmp

        Filesize

        508KB

      • memory/2352-20-0x0000000000130000-0x00000000001AF000-memory.dmp

        Filesize

        508KB

      • memory/2352-21-0x0000000000130000-0x00000000001AF000-memory.dmp

        Filesize

        508KB

      • memory/2352-23-0x0000000000130000-0x00000000001AF000-memory.dmp

        Filesize

        508KB

      • memory/2352-22-0x0000000000130000-0x00000000001AF000-memory.dmp

        Filesize

        508KB

      • memory/2352-45-0x0000000000130000-0x00000000001AF000-memory.dmp

        Filesize

        508KB

      • memory/2352-51-0x0000000000130000-0x00000000001AF000-memory.dmp

        Filesize

        508KB

      • memory/2352-50-0x0000000000130000-0x00000000001AF000-memory.dmp

        Filesize

        508KB

      • memory/2352-44-0x0000000000130000-0x00000000001AF000-memory.dmp

        Filesize

        508KB

      • memory/2352-43-0x0000000000130000-0x00000000001AF000-memory.dmp

        Filesize

        508KB

      • memory/2352-49-0x0000000000130000-0x00000000001AF000-memory.dmp

        Filesize

        508KB

      • memory/2352-12-0x0000000000130000-0x00000000001AF000-memory.dmp

        Filesize

        508KB

      • memory/2352-48-0x0000000000130000-0x00000000001AF000-memory.dmp

        Filesize

        508KB

      • memory/2352-13-0x0000000000130000-0x00000000001AF000-memory.dmp

        Filesize

        508KB

      • memory/2352-47-0x0000000000130000-0x00000000001AF000-memory.dmp

        Filesize

        508KB

      • memory/2352-11-0x0000000000130000-0x00000000001AF000-memory.dmp

        Filesize

        508KB

      • memory/2452-35-0x0000000000400000-0x0000000000457000-memory.dmp

        Filesize

        348KB

      • memory/2452-32-0x0000000000400000-0x0000000000457000-memory.dmp

        Filesize

        348KB

      • memory/2452-31-0x0000000000400000-0x0000000000457000-memory.dmp

        Filesize

        348KB

      • memory/2508-37-0x0000000000400000-0x0000000000424000-memory.dmp

        Filesize

        144KB

      • memory/2508-34-0x0000000000400000-0x0000000000424000-memory.dmp

        Filesize

        144KB

      • memory/2508-36-0x0000000000400000-0x0000000000424000-memory.dmp

        Filesize

        144KB

      • memory/2712-28-0x0000000000400000-0x0000000000478000-memory.dmp

        Filesize

        480KB

      • memory/2712-29-0x0000000000400000-0x0000000000478000-memory.dmp

        Filesize

        480KB

      • memory/2712-27-0x0000000000400000-0x0000000000478000-memory.dmp

        Filesize

        480KB

      • memory/2712-26-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

        Filesize

        4KB